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Biliary congenital anomalies (10%of autopsies) (kasr) - Coggle Diagram
Biliary congenital anomalies (10%of autopsies) (kasr)
1- GB anomalies
GB absence (0.03%)
Parygian cap ( kinking of GB fundus)
2-6%of cholecystographies
No clinical significance
Double GB (1in 4000)
Floating GB
Hangs with mesentery
Liable for torsion
Left sided GB (Very rare)
Intrahepatic GB
Increase Incidence of gallstones
3- Bile ducts anomalies تفصيل عند الوصول إليهم
Biliary atresia
Incidence
The most frequent cause of prolonged jaundice in infancy (60%)
Aetiology
Types
Prognosis
Investigations
DD
TTT
Choledochal cyst
Incidence & epidemiology
5% of obstructive jaundice cases
Def.
Classifications
CP
Inv.
TTT
2- Cystic duct anomalies
Abscence of cystic duct (Sessile GB)
Possibility of CBD injury during cholecystectomy
Low insertion of cystic duct (Common)
Open into CBD near the ampulla
May lead to CBD ligation during cholecystectomy
Open into right hepatic duct
Mistaken RHD for the cystic duct and ligated
Hepatic and cystic arteries anomalies
Accessory cystic artery (20%)
The most common anomaly
May be torn if not identified
Large accessory left hepatic artery (5%)
From left gastric artery
Cystic a. from sup. mesenteric a. or other arteries
80% cystic a. arise from right hepatic a.
Right hepatic artery
May pass in front of or behind CHD or CBD
May be mistaken for cystic a. and ligated